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Converters | NCV97400

Automotive Multi-Output Power Management IC (PMIC) for Safety Applications

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Overview

The NCV97400 is a 4鈭抩utput monolithic regulator consisting of 3 buck regulators and 1 boost regulator with supervisory functions including window voltage monitoring on all outputs and a window watchdog timer. This product is ideal for ADAS (Advanced Driver Assistance Systems) applications and utilizes an independent voltage reference and an adjustable independent oscillator to realize the supervisory features.A 40 V non鈭抯ynchronous buck regulator converts the battery supply voltage to a 3.3 V output, and delivers up to 3 A (peak). This output rail may be used as the input voltage for the 2 synchronous secondary buck converters and the non鈭抯ynchronous secondary boost converter. Each secondary buck is adjustable and can be set from 2.5 V to 0.8 V with 2 A peak current limit and can be supplied by up to 3.6 V from a separate supply. The secondary boost output voltage is fixed and is intended to supply a low current 5.0 V rail for In鈭扸ehicle Networking circuits (IVN).All internal MOSFETs are N鈭抍hannel devices, and bootstrap circuits are used to drive high side MOSFETs. All 4 SMPS outputs use peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the low鈭抳oltage gate drivers.The NCV97400 is a functional safety solution that reduces the time required to develop safety systems that comply with the International Standards Organization (ISO) 26262. The device includes a range of integrated safety features such as dedicated feedback references, output voltage monitoring, and window watchdog timer.

  • Safety Applications
  • ADAS (Advanced Driver Assistance Systems)
  • Body Electronics
  • Telematics

  • Automotive

  • 3 Enabled Buck Converters
  • 1 Boost Converter for IVN Supply
  • Wide Input of 4.1 to 40 V with Undervoltage Lockout (UVLO)
  • Fixed, 2 MHz Base Switching Frequency
  • Pseudo鈭抮andom Spread Spectrum for Improved EMI
  • Window Watchdog with Independent References
  • Cycle鈭抌y鈭抍ycle Current Limit Protection
  • External Frequency Synchronization
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC鈭扱100 Qualified and PPAP Capable
  • QFN Package with Wettable Flanks (pin edge plating)
  • These Devices are Pb鈭扚ree, Halogen Free/BFR Free and are RoHS Compliant

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NCV97400MW00R2G

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Active

CAD Model

Pb

A

H

P

QFNW-32

484AB

1

260

REEL

5000

Y

Step-Down

Current Mode

4.1

40

5

3

80-85

2000

$4.7624

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Reliability Data

Die Related Summary Data

Device: NCV97400MW00R2G

Equivalent to wafer fab process: I3T

Product Technology

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Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

I3T

4

4350769675

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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